The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 2001
Filed:
Dec. 15, 1999
Zili Sun, Arkadelphia, AR (US);
Gene Michael Fields, Arkadelphia, AR (US);
Scroll Technologies, Arkadelphia, AR (US);
Abstract
A scroll compressor has a check valve plate assembly with a reinforcing device to increase the strength of the check valve plate. The check valve plate is stamped from a relatively thin steel reed material. Notched areas are provided during stamping to enable the formation of rolled laterally spaced pins which provide an axis along which the check valve plate may pivot. The reinforcing device is in the form of a slot rolled pin, a spiral rolled pin, or a solid pin, fitted within a bore formed by the rolled laterally spaced pins of the check valve plate. The notched areas of the check valve plate are weakened due to the reduction of the local cross sectional area of the laterally spaced pins. Insertion of the reinforcing device significantly reduces the incidence of cracking that occurs at the notched areas of the check valve plate.